How To Fix UPWB191 - Class &1 is not a subclass of CL_UPWB_BSP_APPL


UPWB191 - Overview

  • Message type: E = Error

  • Message class: UPWB - Messages for Development Class UPWB

  • Message number: 191

  • Message text: Class &1 is not a subclass of CL_UPWB_BSP_APPL

  • Show details Hide details
  • What causes this issue?

    It is specified that the ABAP application class is not to be generated.
    In this case the specified class has to be a subclass of standard class
    <AB>CL_UPWB_BSP_APPL</>. The specified class <AB>&V1&</> is not a
    subclass or is not active.

    System Response

    If the BSP application is generated in the Web Interface Builder,
    generation may fail. If generation is successful and you start the
    Web application, an error may occur if the BSP page does not correspond
    to the data that delivers the class.

    How to fix this error?

    Use the standard class or a subclass of standard class <AB>CL_UPWB_BSP_
    APPL</>, or set the "Generate class" setting to <SE><AB>true</></>.
    If the specified class has been generated by the Web Interface Builder
    before, also set the "Generate class" setting to <AB>true</>. Then you
    will be asked explicitely before each generation whether your class
    should be overwritten.
    You will find more information in the F1 documentation on the "Generate
    class" setting.

    Procedure for System Administrators

    The system issues an error message and will not allow you to continue with this transaction until the error is resolved.


    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message UPWB191 - Class &1 is not a subclass of CL_UPWB_BSP_APPL ?
    The SAP error message UPWB191 indicates that there is an issue with a class not being recognized as a subclass of CL_UPWB_BSP_APPL. This typically occurs in the context of SAP Business Planning and Consolidation (BPC) or when working with Web Application Designer (WAD) applications.
    
    Cause: Class Definition Issue: The class specified in the error message (denoted as &1) is either not defined correctly or does not extend the required superclass CL_UPWB_BSP_APPL. Incorrect Configuration: The application or component configuration may be pointing to a class that is not properly set up or does not inherit from the expected base class. Transport Issues: If the class was recently transported from another system, it may not have been transported correctly, leading to inconsistencies. Development Errors: If custom development has been done, there may be errors in the implementation of the class.
    Solution: Check Class Definition: Go to the ABAP Workbench (transaction SE80 or SE24) and check the class definition of the

    Already have an account? Login here!




Instant HelpGet instant SAP help. Sign up for our Free Essentials Plan.


Related SAP Error Messages

Click the links below to see the following related messages:

Click on this link to search all SAP messages.


Rating
The AI Support Assistant is great. It provides comprehensive assistance even on the most difficult issues. I highly recommend this service.
Rate 1
John Jordan
SAP Consultant & Author